JP2014029049A - Spinning and drawing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spinning and drawing device capable of reducing thermal energy for heating a heating roller and improving a heating efficiency.SOLUTION: The spinning and drawing device 2 includes godet rollers 18 to 21 for drawing a yarn Y spun out from a spinning machine 4 and a heat insulating box 22 for housing the godet rollers 18 to 21. The heat insulating box 22 contains contact rollers 14 to 17 which are for contacting the yarn Y before it is wound around the godet rollers 18 to 21 and do not use a heat source during steady operation.

Description

  The present invention relates to a spinning and drawing apparatus including a heating roller for taking up and drawing a yarn spun from a spinning machine.

  Spinning and drawing device comprising a plurality of rollers including a heating roller for taking up, drawing and heat-setting the yarn spun from a spinning machine, and winding the yarn drawn by the drawing and drawing device to form a package A spinning winder equipped with a device and the like is known.

  In the spinning and drawing apparatus described in Patent Document 1, two heating rollers for preheating for preheating the yarn before drawing are arranged side by side in the vertical direction, and heat setting for heat fixing the yarn after drawing is performed. Two heating rollers are arranged in the vertical direction. The two heating rollers for preheating and the two heating rollers for heat fixing are arranged side by side in the left-right direction. The two heating rollers for preheating are heated to the same temperature, and the two heating rollers for heat fixing are also heated to the same temperature. The heating roller for heat fixing is the heating roller for preheating. Is heated to a higher temperature. The yarns spun from the spinning machine are wound around two heating rollers for preheating in order from the bottom to the top at a winding angle of 360 degrees or less on each heating roller, and then from the bottom to the top. It is wound around two heating rollers for heat setting. The two heating rollers for upstream preheating rotate at approximately the same rotational speed, and the two heating rollers for downstream heat setting are faster than the two heating rollers for upstream preheating. Rotates at approximately the same rotational speed. The yarn traveling on these heating rollers is first heated to a temperature above the glass transition point by a preheating heating roller. Since the yarn feeding speed of the heat fixing heating roller is faster than that of the preheating heating roller, the yarn is drawn between the preheating heating roller and the heat fixing heating roller, and the drawn yarn is drawn. Is heat-fixed by a heat-fixing heating roller.

International Publication No. 2011/009498 (FIG. 1)

  In the spinning and drawing apparatus as described in Patent Document 1, in order to sufficiently heat the yarn to a predetermined temperature, it is necessary to ensure the contact length of the yarn on the heating roller, but the number of heating rollers around which the yarn is wound is increased. Or by increasing the diameter of the heating roller. However, in order to heat many heating rollers or to heat a heating roller having a large diameter, there is a problem that large heat energy is required. Further, since the yarn is very thin, even if a large number of yarns are wound around the heating roller, the contact portion with the heating roller is very small. For this reason, most of the surface of the heating roller is not covered with the yarn and is exposed, so most of the heat from the heating roller is wasted without being used to heat the yarn and wasted in heat energy. There is a problem that has occurred.

  An object of the present invention is to provide a spinning and drawing apparatus that can reduce the heat energy for heating a yarn and can improve the heating efficiency.

  A spinning / drawing device according to a first aspect of the present invention is a spinning / drawing device comprising a heating roller for drawing a yarn spun from a spinning machine, and a heat insulation box that houses the heating roller, wherein the heat insulation box A contact member that contacts the yarn before being wound around the heating roller and does not use a dedicated heat source for heating the member during steady operation is provided.

  According to the present invention, the heat retaining box is provided with a contact member that contacts the yarn before being wound around the heating roller and does not use a dedicated heat source for heating the member during steady operation. The air in the heat insulation box is heated by the heat released from the heating roller, and the contact member is heated to substantially the same temperature as the heated air by the heated air. The yarn before entering the heating roller is heated by the heated contact member. For this reason, since the heat energy required to heat the yarn to the required temperature by the heating roller can be reduced, and the contact length of the yarn on the heating roller can be shortened, compared to conventional spinning and drawing devices. The diameter of the heating roller can be reduced or the number can be reduced. And since the diameter of a heating roller can be made small or a number can be reduced, the heat energy required to heat a heating roller to heating temperature can be made small. Moreover, since the yarn before drawing is heated by using the heat released from the heating roller for heating the contact member, the heat released from the heating roller can be used effectively, and the heating efficiency is improved. . The “steady operation” means that the heating roller is at a predetermined temperature and the spinning and drawing apparatus is operating in a state where the yarn can be drawn.

  A spinning / drawing apparatus according to a second invention is characterized in that, in the spinning / drawing apparatus according to the first invention, the contact member does not have a heat source.

  According to the present invention, since the contact member does not have a heat source, the structure of the contact member can be simplified.

  According to a third aspect of the present invention, there is provided the spinning / drawing apparatus according to the first or second aspect, wherein the contact member is disposed above the heating roller.

  According to the present invention, since the contact member is disposed above the heating roller, the heated air rises due to the heat released from the heating roller, and the upper temperature in the heat insulation box increases. Therefore, since the contact member is heated by the higher temperature air, the heat released from the heating roller is used more effectively, and the heating efficiency is further improved.

  A spinning / drawing device according to a fourth invention is the spinning / drawing device according to the first to third inventions, wherein a plurality of the heating rollers having different heating temperatures are accommodated in the heat retaining box, and the heating at a low heating temperature is performed. The yarn is wound in the order of the heating roller having the highest heating temperature from the roller.

  According to the present invention, since the heating rollers having different heating temperatures are accommodated in one heat insulating box, the heat released from the heating roller having the higher heating temperature on the downstream side is transferred to the heating roller having the lower heating temperature on the upstream side. Therefore, the heat can be effectively used and the heating efficiency is improved.

  According to a fifth aspect of the present invention, there is provided the spinning and stretching apparatus according to the fourth aspect, wherein the contact member is disposed above the heating roller having a high heating temperature.

  According to the present invention, since the contact member is disposed above the heating roller having a high heating temperature, the heat emitted from the heating roller having a high heating temperature is particularly high above the heating roller having a high heating temperature. Since the temperature is high, the contact member is heated by air having a higher temperature, so that the heat released from the heating roller having a higher heating temperature can be used more effectively, and the heating efficiency is further improved.

  A spinning / drawing apparatus according to a sixth aspect of the present invention is the spinning / drawing apparatus according to any one of the first to fifth aspects, wherein the contact member is made of metal.

  In the present invention, the temperature of the yarn contact surface can be made more uniform by making the contact member a metal having good thermal conductivity. Furthermore, by reducing the thickness of the contact member as much as possible, the heat capacity of the member can be reduced, and the time to reach a predetermined temperature can be shortened.

  A spinning / drawing apparatus according to a seventh aspect of the present invention is the spinning / drawing apparatus according to any one of the first to sixth aspects, wherein the contact member is a roller.

  According to the present invention, since the contact member is a roller, damage to the yarn that contacts the contact member is small.

  A spinning / drawing apparatus according to an eighth invention is the spinning / drawing apparatus according to the seventh invention, wherein the contact member is a cylindrical roller having a hollow inside.

  According to the present invention, since the contact member is a hollow cylindrical roller, the temperature of the contact member can be easily increased because the heat capacity of the contact member is small.

  According to a ninth aspect of the present invention, there is provided the spinning / drawing apparatus according to the seventh or eighth aspect, wherein the contact member is wound with a yarn at a winding angle of 90 degrees or more. .

  According to the present invention, since the yarn is wound around the contact member at a winding angle of 90 degrees or more, the contact length of the yarn in the contact member becomes long, and the yarn can be heated with a long contact length.

  According to the present invention, a contact member that contacts the yarn before being wound around the heating roller and does not use a dedicated heat source for heating the member during steady operation is provided in the heat insulation box. The air in the heat insulation box is heated by the heat released from the heating roller, and the contact member is heated to substantially the same temperature as the heated air by the heated air. The yarn before entering the heating roller is heated by the heated contact member. For this reason, the heat energy for heating the yarn to the required temperature by the heating roller can be reduced, and the contact length of the yarn in the heating roller can be shortened. The diameter can be reduced or the number can be reduced. And since the diameter of a heating roller can be made small or a number can be reduced, the heat energy required to heat a heating roller to heating temperature can be made small. Moreover, since the yarn before drawing is heated by using the heat released from the heating roller for heating the contact member, the heat released from the heating roller can be used effectively, and the heating efficiency is improved. .

It is a front view which shows the structure of the spinning winder which concerns on embodiment of this invention. 1 is a side view of a spinning winder according to an embodiment of the present invention. It is a front view which shows the structure of the spinning winder of one modification. It is a front view which shows the structure of the spinning winder of another modification. It is a figure which shows the other structural example of a contact plate. It is a figure which shows the structural example of a contact roller in the structure by which a thread | yarn is wound around a godet roller in multiple times.

  Hereinafter, preferred embodiments of the present invention will be described.

  FIG. 1 is a front view showing a configuration of a spinning winder equipped with a spinning stretcher according to an embodiment of the present invention, and FIG. 2 is a side view of the spinning winder. As shown in FIGS. 1 and 2, the spinning winder 1 includes a spinning drawing device 2 and a yarn winding device 3, and a plurality of spinning winders 1 are continuously fed after being spun from the spinning machine 4 located above. The yarn Y is drawn by the spinning drawing device 2 and sent to the yarn winding device 3, and a plurality of yarns Y are taken up by the yarn winding device 3. The yarn Y is a polyester fiber that needs to be preheated for drawing.

  The spinning and drawing apparatus 2 includes godet rollers 18 to 21 for drawing the yarn Y spun from the spinning machine 4. Details will be described later.

  The yarn winding device 3 is disposed below the spinning machine 4 and forms a plurality of packages P by winding a plurality of yarns Y drawn by the spinning drawing device 2 around a plurality of bobbins B, respectively. The yarn winding device 3 includes guide rollers 5 and 6, a plurality of fulcrum guides 7, and two winding units 8.

  The guide rollers 5 and 6 are drive rollers driven by a motor (not shown), and their axial directions are provided in parallel with the left-right direction. The guide roller 6 is disposed behind and above the guide roller 5. A plurality of yarns Y sent from the spinning and drawing apparatus 2 are sent to a plurality of fulcrum guides 7 below by guide rollers 5 and 6.

  The plurality of fulcrum guides 7 are below the guide rollers 6 and above the plurality of traverse guides 12 and directly above the plurality of traverse guides 12 and the plurality of bobbins B mounted on the bobbin holder 11 in the winding axis direction. Are arranged along.

  The winding unit 8 is cantilevered by a main body frame 9, a disc-shaped turret 10 provided rotatably on the main body frame 9, and the turret 10. A winding shaft extends horizontally, and a plurality of bobbins B are Two bobbin holders 11 mounted in series along the axial direction of the winding shaft, a traverse guide 12 for traversing the yarn Y, and movable in the vertical direction with respect to the main body frame 9, are mounted on the bobbin holder 11. In addition, a contact roller 13 that is in contact with the bobbin B is provided.

  The winding unit 8 rotates a plurality of bobbins B mounted on the bobbin holder 11 by rotating the bobbin holder 11 by driving a motor (not shown), and winds a plurality of yarns Y around the rotating bobbins B. At this time, the yarn Y wound around the bobbin B is traversed in the axial direction of the bobbin B with the fulcrum guide 7 as a fulcrum by the traverse guides 12 respectively disposed above the plurality of bobbins B.

  Then, the yarn Y traversed by the traverse guide 12 with the fulcrum guide 7 as a fulcrum is wound around the bobbin B to form a package P. At this time, the contact roller 13 contacts the outer peripheral surface of the package P during winding onto the bobbin B, and rotates while applying a predetermined contact pressure, thereby adjusting the shape of the package P. The plurality of packages P attached to the bobbin holder 11 are pushed forward by a pusher (not shown) and removed from the bobbin holder 11 when they are fully wound.

  Next, the spinning drawing apparatus 2 will be described. The spinning and stretching apparatus 2 includes contact rollers 14 to 17 (contact members) described later, godet rollers 18 to 21 (heating rollers) for stretching the yarn Y spun from the spinning machine 4, contact rollers 14 to 17 and godet rollers 18. A heat insulating box 22 that accommodates ˜21 and guide rollers 23 and 24 that feed the yarn Y to the yarn winding device 3 are provided below the spinning machine 4. In addition, in FIG. 1, it has illustrated so that the inside of the heat insulation box 22 may be seen.

  The godet rollers 18 to 21 are drive rollers that are rotated by a motor (not shown) that is cantilevered by a frame (not shown), and have a heater inside. The godet rollers 18 to 21 are formed, for example, by applying chromium plating to the iron surface. The godet rollers 18 and 19 (heating rollers having a low heating temperature) are preheating godet rollers for preheating the yarn Y before drawing to a temperature equal to or higher than the glass transition point, and when the yarn Y is a polyester fiber, The temperature is set to 80 to 100 ° C. The glass transition point varies depending on the type of polymer. The godet rollers 20, 21 (heating rollers having a high heating temperature) are heat setting godet rollers for heat fixing the stretched yarn Y. When the yarn Y is a polyester fiber, the temperature is set to 120 to 150 ° C. Is done. Thus, the godet rollers 20 and 21 have a higher heating temperature than the godet rollers 18 and 19.

  The godet rollers 18 to 21 have respective axes that are parallel to each other, and have a diameter in the range of 220 to 300 mm, for example, and have the same diameter. The godet roller 18 is disposed on the left side and below in the heat insulation box 22, and the godet roller 19 is disposed at a position shifted to the right and above the godet roller 18. The godet roller 20 is disposed at a position shifted downward and to the right of the godet roller 19. The godet roller 21 is disposed at a position shifted upward and to the right of the godet roller 20. That is, the godet rollers 18 to 21 are arranged from the left to the right in the order of the godet rollers 18, 19, 20, 21 and from the bottom to the top in the order of the godet rollers 18, 20, 19, 21. The godet rollers 18 to 21 each have a winding angle of 360 degrees or less, and are preheated godet rollers 18 and 19 and heat fixing godet rollers 20 and 21 in this order, that is, godet rollers 18, 19, 20, and 21 in this order. Y is wrapped around. The yarn Y led out from the godet roller 21 is sent to the guide roller 23.

  The heat insulating box 22 is a substantially rectangular parallelepiped box made of a heat insulating material that accommodates the contact rollers 14 to 17 and the godet rollers 18 to 21. The heat retaining box 22 prevents heat released from the godet rollers 18 to 21 from escaping to the outside. The temperature inside the heat insulation box 22 is higher than the lower due to the convection of heat released from the godet rollers 18 to 21. For example, the upper temperature rises to about 90 ° C. Further, inside the heat insulating box 22, there are provided walls 25 for separating the preheating godet rollers 18 and 19 having different heating temperatures and the godet rollers 20 and 21 for heat fixing, and the preheating godet rollers having different heating temperatures are provided. 18 and 19 and the godet rollers 20 and 21 for heat fixation are prevented from affecting each other's heating temperature.

  A slit 26 is provided on the upper surface of the heat insulation box 22, and the yarn Y spun from the spinning machine 4 enters the heat insulation box 22 from above through the slit 26. In addition, a slit 27 is provided on the right side surface of the heat insulation box 22, and the yarn Y passes from the inside of the heat insulation box 22 to the outside through the slit 27.

  The guide roller 23 is disposed outside the heat insulation box 22 at a position shifted to the right from the lower part of the heat insulation box 22. The guide roller 24 is disposed outside the heat insulation box 22 at a position shifted to the right from the upper part of the heat insulation box 22. The guide roller 24 is located above and to the right of the guide roller 23. The yarn Y sent from the godet roller 21 is sent to the guide roller 24 by the guide roller 23 and sent to the guide roller 5 by the guide roller 24. The guide rollers 23 and 24 may be driven rollers or driving rollers. However, if the driving rollers are used, the yarn path of the yarn Y can be easily changed.

  In the spinning and drawing apparatus 2, the plurality of yarns Y are preheated to a temperature equal to or higher than the glass transition point by contacting the preheating godet rollers 18 and 19, and are driven downstream by rotation of the preheating godet rollers 18 and 19. To the godet rollers 20 and 21 for heat fixation. Here, for example, the upstream preheating godet rollers 18 and 19 rotate at substantially the same rotational speed, and the downstream heat fixing godet rollers 20 and 21 rotate at substantially the same rotational speed. The downstream heat fixing godet rollers 20 and 21 rotate at a faster rotational speed than the upstream preheating godet rollers 18 and 19. Accordingly, since the yarn feeding speed by the downstream godet rollers 20 and 21 is faster than that of the upstream godet rollers 18 and 19, a plurality of yarns Y are stretched between the godet rollers 18 and 19 and the godet rollers 20 and 21. The stretched yarns Y are heat-fixed by contacting the heat-setting godet rollers 20, 21, and are sent to the guide rollers 23, 24 by the rotational drive of the heat-fixing godet rollers 20, 21. Then, a plurality of yarns Y are sent from the guide rollers 23 and 24 to the yarn winding device 3.

  As described above, in order to stretch the yarn Y, preheating up to a temperature equal to or higher than the glass transition point is required. In the conventional spinning drawing apparatus, the yarn spun from the spinning machine is not actively heated before running on the preheating godet roller. A lot of heat energy is required for preheating up to a temperature above the point. Therefore, in the present invention, the heat insulating box 22 is provided with contact rollers 14 to 17 that are in contact with the yarn Y before being wound around the godet rollers 18 to 21 and do not use a heat source during steady operation. The yarn Y before running on the godet rollers 18 to 21 is heated by the contact rollers 14 to 17 heated by the air inside. Hereinafter, the contact rollers 14 to 17 will be described in detail.

  The contact rollers 14 to 17 are rollers made of metal that is cantilevered by a frame (not shown), and are provided above the godet rollers 18 to 21 in the heat insulating box 22. The contact rollers 14 to 17 have axial axes parallel to each other, and are arranged in a staggered manner, that is, in a staggered manner. Here, the contact rollers 14 to 17 are heated by the air in the heat insulation box 22, but because of the heating of the yarn Y, the heat conductivity is high, the heat capacity is small, and the temperature rises uniformly and easily. Is good. In order to reduce the heat capacity, the volume of the contact rollers 14 to 17 and the heat capacity per unit volume may be reduced. In the present embodiment, the contact rollers 14 to 17 are made of aluminum which is a metal having a high thermal conductivity and a small heat capacity per unit volume. Moreover, in this Embodiment, in order to make the volume of the contact rollers 14-17 small, the contact rollers 14-17 are thin-walled and the inside is hollow and cylindrical. The thickness of the cylindrical contact rollers 14 to 17 is preferably as thin as possible in order to reduce the volume. Moreover, the diameters of the contact rollers 14 to 17 are all the same within a range of 70 to 150 mm, for example, and are smaller than the diameters of the godet rollers 18 to 21.

  Further, the contact rollers 14 to 17 do not use a heat source for heating during steady operation. Here, “not using a heat source during steady operation” not only means that the contact rollers 14 to 17 are not provided with a heat source, but also the contact rollers 14 to 17 are provided with a heat source. This means that a heat source dedicated to heating is not used during steady operation. Furthermore, it is a concept that includes not only using a heat source such as an internal heater but also not using a heat source for heating only the contact rollers 14 to 17 from the outside. The contact rollers 14 to 17 may be driven rollers or drive rollers. Here, “steady operation” means that the godet rollers 18 to 21 are at a predetermined temperature, and the spinning drawing device 2 can draw the yarn Y, that is, the spinning winder 1 can produce the yarn Y. It is operating in a state.

  In the present embodiment, the contact rollers 14 to 17 do not have a heat source. Accordingly, the contact rollers 14 to 17 are not heated by the heat source during steady operation. Here, “not having a heat source” includes not only having no heat source such as a heater inside but also not having a heat source for heating only the contact rollers 14 to 17 from the outside. It is a concept. For example, it also means that there is no heat source for induction heating of the contact rollers 14 to 17 outside.

  The contact rollers 14 to 17 have a winding angle of 90 degrees or more (in this embodiment, a winding angle of 90 degrees or more and less than 180 degrees), in order from right to left, that is, the contact rollers 14, 15, 16 , 17 in order of yarn Y. The yarn Y from the spinning machine 4 enters the contact roller 14 from above, and the yarn Y is led out downward from the contact roller 17 and sent to the godet rollers 18 to 21. That is, the contact rollers 14 to 17 are in contact with the yarn Y before being wound around the godet rollers 18 to 21.

  As described above, the air warmed by the heat released from the godet rollers 18 to 21 rises in the heat insulation box 22, and the upper temperature is high in the heat insulation box 22. The contact rollers 14 to 17 are heated to substantially the same temperature as the high temperature air by the high temperature air. The yarn Y that comes into contact with the contact rollers 14 to 17 is heated by the heated contact rollers 14 to 17 and sent to the godet rollers 18 to 21.

  As described above, the spinning and drawing apparatus 2 according to the present embodiment includes the godet rollers 18 to 21 for drawing the yarn Y spun from the spinning machine 4, and the heat retaining box 22 that houses the godet rollers 18 to 21. , And contact rollers 14 to 17 that are in contact with the yarn Y before being wound around the godet rollers 18 to 21 and do not use a heat source during steady operation.

  According to the spinning / drawing device 2 according to the present embodiment configured as described above, the heat source is not contacted with the yarn Y before being wound around the godet rollers 18 to 21 in the heat insulating box 22 and a heat source is not used during steady operation. Since the contact rollers 14-17 are provided, the air in the heat insulation box 22 is heated by the heat released from the godet rollers 18-21, and the contact rollers 14-17 in the heat insulation box 22 are heated by the heated air. , Heated to approximately the same temperature as the heated air. The yarn Y before entering the godet rollers 18 to 21 is heated by the heated contact rollers 14 to 17. For this reason, since the heat energy required to heat the yarn Y to the required temperature by the godet rollers 18 to 21 can be reduced, and the contact length of the yarn Y on the godet rollers 18 to 21 can be shortened, Compared to the spinning and drawing apparatus, the diameter of the godet rollers 18 to 21 can be reduced or the number of the godet rollers 18 to 21 can be reduced. And since the size of the godet rollers 18-21 can be reduced or the number can be reduced, the thermal energy required to heat the godet rollers 18-21 to the heating temperature can be reduced. In addition, since the yarn Y before drawing is heated by using the heat released from the godet rollers 18 to 21 to heat the contact rollers 14 to 17, the heat released from the godet rollers 18 to 21 is effectively used. Heating efficiency is improved.

  Further, the contact rollers 14 to 17 do not have a heat source. For this reason, the structure of the contact rollers 14-17 can be simplified.

  Moreover, since the contact rollers 14-17 are arrange | positioned so that it may be located above the godet rollers 18-21, the warmed air rises with the heat | fever discharge | released from the godet rollers 18-21, Therefore, the contact rollers 14 to 17 are heated by the higher temperature air, so that the heat released from the godet rollers 18 to 21 is used more effectively and the heating efficiency is further improved.

  Further, a plurality of godet rollers 18 to 21 having different heating temperatures are accommodated in the heat insulation box 22, and the yarn Y is wound around the godet rollers 18 and 19 having a low heating temperature and the godet rollers 20 and 21 having a high heating temperature. Thus, since the godet rollers 18 and 19 and the godet rollers 20 and 21 having different heating temperatures are accommodated in one heat insulating box 22, the heat released from the godet rollers 20 and 21 having a high downstream heating temperature. Can be used for heating the yarn Y by the godet rollers 18 and 19 having a low upstream heating temperature, so that heat can be used effectively and heating efficiency is improved.

  Moreover, since the contact rollers 14-17 are formed with the metal, heat conductivity is high. Moreover, in this Embodiment, since it is thin-walled and the inside is hollow and cylindrical, the heat capacities of the contact rollers 14 to 17 are small. For this reason, the temperature of the contact rollers 14 to 17 having a high thermal conductivity and a small heat capacity can be increased uniformly and easily.

  Moreover, since the contact rollers 14-17 are rollers, the damage to the thread | yarn Y which contacts the contact rollers 14-17 is small.

  Further, since the contact rollers 14 to 17 are hollow cylindrical rollers, the contact rollers 14 to 17 have a small heat capacity, so that the temperatures of the contact rollers 14 to 17 can be easily increased.

  Further, since the yarn is wound around the contact rollers 14 to 17 at a winding angle of 90 degrees or more, the contact length of the yarn Y in the contact rollers 14 to 17 becomes long, and the yarn Y is heated with a long contact length. can do.

  The embodiments of the present invention have been described above. However, the embodiments to which the present invention can be applied are not limited to the above-described embodiments, and the scope of the present invention is not deviated as exemplified below. It is possible to make changes as appropriate.

  In the above-described embodiment, the preheating godet rollers 18 and 19 and the heat fixing godet rollers 20 and 21 have different heating temperatures and are provided in the same number (two), but the number is different. Also good. FIG. 3 is a front view illustrating a configuration of a spinning winder according to a modification. Here, the godet roller 28 is a pre-heating godet roller (a heating roller having a low heating temperature), and the godet rollers 29 to 31 are godet rollers for heat fixing (a heating roller having a high heating temperature). The godet roller 28 and the godet rollers 29 to 31 are partitioned by a wall 25. Further, the contact rollers 14 to 17 are provided above the godet rollers 29 to 31 having a high heating temperature. In this case, since the temperature above the godet rollers 29 to 31 having a high heating temperature is particularly high due to the heat released from the godet rollers 29 to 31 having a high heating temperature, the contact rollers 14 to 17 are heated by the higher temperature air. Therefore, the heat emitted from the godet rollers 29 to 31 having a high heating temperature is used more effectively, and the heating efficiency is further improved. The diameter and number of the godet rollers can be appropriately changed according to the heating temperature of the yarn, the winding angle, and the like.

  In the above-described embodiment, the contact rollers 14 to 17 that are contact members are rollers. However, instead of this, a flat plate may be used as the contact member. As shown in FIG. 4, a contact plate 32, which is a flat plate, is provided in the heat retaining box 22 above the godet rollers 18 to 21 so as to contact the yarn Y before being wound around the godet rollers 18 to 21. May be. Further, as shown in FIG. 5, contact plates 33 to 36 which are a plurality of flat plates are provided, and the yarn path of the yarn Y is changed by the guide rollers 37 to 39, and heat fixing with a high heating temperature is performed. It may be arranged in the vicinity of the godet rollers 40 and 41 for use. The contact plates 33 to 36 are in contact with the yarn Y before being wound around the godet rollers 40 and 41. That is, the contact plates 33 to 36 are provided upstream of the yarn path of the godet rollers 40 and 41. In the case of this configuration, the contact length of the yarn Y to the contact plates 33 to 36 is ensured by the plurality of contact plates 33 to 36.

  In the above-described embodiment, the yarn drawing device 2 is configured so that the yarn Y is wound around the godet rollers 18 to 21 at a winding angle of 360 degrees or less. However, the yarn is applied to the godet roller (heating roller) a plurality of times. A spinning / drawing apparatus having a configuration of being wound may be used. FIG. 6 is a diagram of an example in which a contact roller is provided in a configuration in which the yarn is wound around the godet roller a plurality of times. As shown in the figure, a godet roller 43 and a separate roller 44 are accommodated in the heat retaining box 42. The godet roller 43 is a heating roller provided with a heater inside. The separate roller 44 is a drive roller. The yarn Y is wound around the godet roller 43 and the separation roller 44 a plurality of times with a predetermined pitch so as not to overlap each other. As the godet roller 43 and the separate roller 44 are driven to rotate and a plurality of yarns travel, the yarn Y is heated. Here, the contact rollers 45 to 48 are provided above the heat insulating box 42, and the yarn Y before being wound around the godet roller 43 is wound around the contact rollers 45 to 48. That is, the contact rollers 45 to 48 are in contact with the yarn Y before being wound around the godet roller 43.

  Moreover, in the above-mentioned embodiment, although the contact rollers 14-17 were formed with the metal, you may form with nonmetals, such as ceramics, for example. Further, for example, metal plating may be performed on the surface of the hard plastic so that only the surface is formed of metal, and the temperature of the surface may be easily increased. Moreover, although the inside of the contact rollers 14-17 is a cavity, it does not need to be a cavity.

  Moreover, in the above-mentioned embodiment, although the contact rollers 14-17 were arrange | positioned so that it might be located above the godet rollers 18-21 (inside the heat insulation box 22), of the godet rollers 18-21 (in the heat insulation box 22). It may not be upward. For example, when the temperature below the godet roller (inside the heat insulation box) is sufficiently high due to the layout of the godet roller that is the heating roller, the godet roller can be disposed below the godet roller (in the heat insulation box). Thus, it is preferable to arrange the contact roller at a high temperature position in the heat insulating box.

  In the above-described embodiment, the contact rollers 14 to 17 do not have heat sources inside or outside, but the heat sources of the contact rollers 14 to 17 having heat sources should not be used during steady operation. Thus, the same effect can be obtained. Further, for example, the contact rollers 14 to 17 are heated using a heat source only at a cold start after stopping, and after the temperature of the godet rollers 18 to 21 reaches a steady state, the power source of the heat source of the contact rollers 14 to 17 is shut off. However, it can also be used as a roller having no heat source. It is not during steady operation until the temperature of the godet rollers 18 to 21 reaches a steady state (predetermined temperature) after a cold start after stopping. The state in which the temperature of the godet rollers 18 to 21 reaches a steady state (predetermined temperature) and the yarn Y can be drawn by the godet rollers 18 to 21 is during steady operation. By adopting such an apparatus and method of use, it is possible to reach a steady state in a short time during startup after stopping, and production of yarn can be started immediately. Can be eliminated. Further, for example, whether to use the heat source of the contact rollers 14 to 17 may be determined according to the type of yarn to be produced. That is, when the fineness of the yarn is thick, the heat source of the contact rollers 14 to 17 is used, and the contact rollers 14 to 17 are used in the same manner as the godet rollers 18 and 19 for preheating the yarn, and the fineness of the yarn is relatively thin. In some cases, the heat sources of the contact rollers 14-17 may not be used. By using such a usage method, the fineness range of the yarn that can be produced can be expanded, and at the same time, the thermal efficiency of the heating roller, which is a feature of the present invention, can be improved.

  Further, the diameters and the number of the contact rollers 14 to 17 can be appropriately changed according to the required degree of heating of the yarn.

DESCRIPTION OF SYMBOLS 1 Spinning winder 2 Spinning drawing apparatus 3 Yarn winding apparatus 4 Spinning machines 14-17 Contact roller (contact member)
18, 19 Godet roller (heating roller with low heating temperature)
20, 21 Godet roller (heating roller with high heating temperature)
22 Insulation box

Claims (9)

A spinning and stretching device comprising: a heating roller for stretching a yarn spun from a spinning machine; and a heat retaining box that houses the heating roller,
A contact member that contacts the yarn before being wound around the heating roller and does not use a dedicated heat source for heating the member during steady operation is provided in the heat insulation box. Spinning and drawing equipment.   The spinning drawing apparatus according to claim 1, wherein the contact member does not have a heat source.   The spinning / drawing apparatus according to claim 1 or 2, wherein the contact member is disposed above the heating roller.   The plurality of heating rollers having different heating temperatures are accommodated in the heat insulation box, and yarns are wound in the order of the heating roller having a lower heating temperature and the heating roller having a higher heating temperature. The spinning drawing apparatus according to any one of 1 to 3.   The spinning stretcher according to claim 4, wherein the contact member is disposed above the heating roller having a high heating temperature.   The spinning / drawing apparatus according to claim 1, wherein the contact member is made of metal.   The spinning / drawing apparatus according to any one of claims 1 to 6, wherein the contact member is a roller.   The spinning / drawing device according to claim 7, wherein the contact member is a cylindrical roller having a hollow inside.   The spinning stretcher according to claim 7 or 8, wherein a yarn is wound around the contact member at a winding angle of 90 degrees or more.

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